<?php
class EXT_output
{
	static function p($var)
	{
		echo "<pre>";
		print_r($var);
		echo "</pre><br>\n";
	}
	function safeString($str)
	{
		$str = preg_replace('/[^a-zA-Z0-9]/isU','',$str);
		return $str;
	}
}